Identify the type of writing error in the following sentence: Many experts agree that cutting sugar from children's diets improves their behavior control and cognitive ability.
A. Hedging. Qualifiers add imprecision to your writing. Strike extra words that do not contribute meaning.
B. Unsupported assertion. Opinion alone is insufficient; include an appropriate reference to back up each argument.
C. Lacks clarity. Using a pretentious tone confuses the audience; choose words that enlighten the reader.
D. No error.